A-1 Aluminum sells gutters and downspouts, and has more than 20 years of experience installing seamless gutter systems, gutter guards, caps, siding, windows, doors, and screen enclosures. A-1 Aluminum installs 5- to 6-inch seamless aluminum K-style gutters, using 5-inch by 1-inch by 0.060-inch aluminum hidden hangers and 2-inch zinc-coated screw nails. All miters are hand-cut and sealed with 100 percent silicone. The company sells Nantucket, Proside, Prestige and Eminence vinyl siding, windows and steel entry doors, available in smooth steel, stainable steel and fiberglass, with a wide variety of clear and decorative glass styles. A-1 Aluminum also sells enclosures, shutters and columns. The company is located in Louisville, Ky.